Root Files

Downloadable versions of the DNS root zone and related files.
Operators who manage a DNS recursive resolver typically need to configure a "root hints file". This file contains the names and IP addresses of the authoritative name servers for the root zone, so the software can bootstrap the DNS resolution process. For advanced uses, the complete root zone file which contains the same data served by the root name servers.
Machine-readable data from the Top Level Domain Registry for software and systems that work with top-level domains. The JSON file includes delegated TLDs, as well as retired, and special-use names, with status, manager, and technical delegation details where applicable. The TLD list provides a simple list of top-level domains currently delegated in the DNS root zone.
The IANA functions coordinate the Internet’s globally unique identifiers, and are provided by Public Technical Identifiers, an affiliate of ICANN.